N-{6-[1,2-Dibromo-2-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-4-oxo-3,4-dihydro-pteridin-2-yl}-2,2-dimethyl-propionamide 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
1,4-二氧六环 为溶剂,
以40%的产率得到N-[6-[2-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]ethynyl]-4-oxo-1H-pteridin-2-yl]-2,2-dimethylpropanamide